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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Control Flow and Decision Making | 20% | - Conditional expressions - If, elif, else statements - Comparisons and logical operators |
| Topic 2: Loops and Iteration | 20% | - Break, continue, and pass statements - Iterating over sequences - For loops and while loops |
| Topic 3: Functions and Modular Programming | 20% | - Defining and calling functions - Parameters, arguments, and return values - Variable scope and code reuse |
| Topic 4: Variables, Data Types, and Basic Operations | 20% | - Data types: integers, floats, strings, booleans - Variables and assignment - Arithmetic operations and type conversion |
| Topic 5: Data Structures and Input/Output | 20% | - User input and output operations - Lists, tuples, dictionaries, sets - Basic file handling |
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NEW QUESTION # 53
What happens when theRunbutton is clicked in a Python development environment?
Answer: C
Explanation:
In a Python development environment, clicking theRunbutton generally executes the currently open Python script or selected code.
For example, if the current script contains:
print( " Hello, Python! " )
clickingRunexecutes the script and displays the output:
Hello, Python!
In Python's IDLE environment, theRun Modulecommand runs the current module. The Python documentation describes IDLE as Python's editor and shell and includes a Run menu for running Python code.
The Run button does not simply open a file browser, save the file without execution, or convert Python code into another programming language.
Therefore, the correct answer isB. The currently open Python script is executed.
NEW QUESTION # 54
What distinguishes a terminal-based Python environment from other development environments?
Answer: B
Explanation:
A terminal-based Python environment uses atext-based command line interface. In this environment, the user types commands directly into a terminal or command prompt.
For example, a user may start Python by typing:
python
When Python is started from a terminal, the interpreter can run in interactive mode, where it displays prompts such as > > > and waits for the user to enter Python commands. The official Python documentation explains that when commands are read from a terminal, the interpreter is in interactive mode.
A terminal-based environment is not mainly identified by graphical user interface elements, internet connectivity, or automatic file saving.
Therefore, the correct answer isC. Text-based command line interface.
NEW QUESTION # 55
Fix the off-by-one error in this function that should return the first 3 characters of a string.
def first_three(text):
return text[0:2]
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: Python string slicing uses this format:
text[start:stop]
Step 2: The start index is included.
Step 3: The stop index is excluded.
Step 4: To return the first 3 characters, start at index 0 and stop at index 3.
Correct code:
def first_three(text):
return text[0:3]
Simplified correct code:
def first_three(text):
return text[:3]
Example:
print(first_three( " Python " ))
Output:
Pyt
NEW QUESTION # 56
Write a complete function calculate_average(grades) that takes a list of grades and returns the average as a float.
For example, calculate_average([85, 92, 78]) should return 85.0.
def calculate_average(grades):
# TODO: Calculate and return the average grade as a float
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives one parameter named grades, which is a list of numbers.
Step 2: Use sum(grades) to add all the grades together.
Step 3: Use len(grades) to count how many grades are in the list.
Step 4: Divide the total by the number of grades.
Correct code:
def calculate_average(grades):
return sum(grades) / len(grades)
Example:
print(calculate_average([85, 92, 78]))
Output:
85.0
NEW QUESTION # 57
Which for loop correctly iterates through a list of student names?
Answer: B
Explanation:
The correct Python for loop syntax uses the keyword in.
Correct code:
for name in [ ' Alice ' , ' Bob ' , ' Carol ' ]:
print(name)
This loop processes each name in the list one at a time. Python's documentation explains that a for statement iterates over the items of a sequence or iterable.
Therefore, the correct answer isA. for name in [ ' Alice ' , ' Bob ' , ' Carol ' ]:.
NEW QUESTION # 58
......
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